Predbat - Telsa Powerwall 2 #887
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mtaylor819
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Hi, Welcome :) I've not tried powerwall before so its hard to comment on specifics but many other systems do work with Predbat:
You can't do this, predbat YAML is not HA yaml. You need to create the helper in HA and then reference it here just as an entity name.
What is this? The charge_start_hour if you set this is meant to be the control of the inverters charging start time (needs to be writable) |
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Lets move this to the ticket I raised #891 |
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Hi there,
I have a Solar array going into a Powerwall 2 via a Solax inverter. I am trying to get Predbat to charge the powerwall using the solar predication with octopus agile. I am struggling lol !!
I have tried the following config but I can't get predbat to start:
2024-03-28 16:15:01.767755 INFO pred_bat: ERROR: Exception raised
2024-03-28 16:15:01.755697 INFO pred_bat: ERROR: Inverter 0 unable to read charge window time as neither REST, charge_start_time or charge_start_hour are set
2024-03-28 16:15:01.754113 INFO pred_bat: Inverter 0 SOC: 0.0 kW 0 % Current charge rate 2600.0 w Current discharge rate 2600.0 w Current power 0.0 w Current voltage 52.0
2024-03-28 16:15:01.752555 INFO pred_bat: Inverter 0 with soc_max 10.0 kWh nominal_capacity 10.0 kWh battery rate raw 2600.0 w charge rate 2.6 kW discharge rate 2.6 kW battery_rate_min 0.0 w ac limit 3.6 kW export limit 3.6 kW reserve 4.0 % current_reserve 4.0 %
2024-03-28 16:15:01.750147 INFO pred_bat: Reserve min: 4.0% Battery_min:4.0%
2024-03-28 16:15:01.747992 INFO pred_bat: Inverter 0: Type GE GivEnergy)
2024-03-28 16:15:01.698606 INFO pred_bat: Today's load divergence 100.0 % in-day adjustment 100.0 % damping 0.95x, Predicted so far 0 kWh with 0.0 kWh car excluded and 0.42 kWh import ignored and 0 forecast extra, Actual so far 0 kWh with 0.0 kWh car excluded and 0.0 kWh import ignored
2024-03-28 16:15:01.684172 INFO pred_bat: Historical days now [7] weight [1]
2024-03-28 16:15:01.557948 INFO pred_bat: WARN: Historical day 7 has no data, unable to fill gaps normally using nominal 24kWh - you should fix your system!
2024-03-28 16:15:01.554957 INFO pred_bat: Historical data totals for days [7] are [0] - min 0
2024-03-28 16:15:01.535993 INFO pred_bat: PV Data for pv_forecast_d4 total 15.45 kWh
2024-03-28 16:15:01.529765 INFO pred_bat: PV Data for pv_forecast_d3 total 17.64 kWh
2024-03-28 16:15:01.523810 INFO pred_bat: PV Data for pv_forecast_tomorrow total 15.59 kWh
2024-03-28 16:15:01.518171 INFO pred_bat: PV Data for pv_forecast_today total 6.55 kWh
2024-03-28 16:15:01.510719 INFO pred_bat: Todays energy import 12.2 kWh export 0.57 kWh cost 200.42 p import 204.2 p export -3.79 p
2024-03-28 16:15:01.462719 INFO pred_bat: Low Import rate found rates in range 6.81 to 30.24
2024-03-28 16:15:01.453209 INFO pred_bat: High export rate found rates in range 4.39 to 16.44
2024-03-28 16:15:01.443515 INFO pred_bat: Rate thresholds (for charge/discharge) are import 31.950000000000003p (0.0) export 4.33p (0.0)
2024-03-28 16:15:01.440830 INFO pred_bat: Export rates min 3.83 max 16.44 average 7.64
2024-03-28 16:15:01.431842 INFO pred_bat: Import rates min 6.81 max 32.45 average 15.24
2024-03-28 16:15:01.429328 INFO pred_bat: Rate min forward looking: now 6.81 at end of forecast 6.81
2024-03-28 16:15:01.157713 INFO pred_bat: Standing charge is set to 47.9535 p
2024-03-28 16:15:01.104557 INFO pred_bat: Fetching futurerate data from None
2024-03-28 16:15:01.101755 INFO pred_bat: Current data so far today: load 0 kWh import 12.2 kWh export 0.57 kWh pv 0.01 kWh
2024-03-28 16:15:01.099349 INFO pred_bat: Car charging hold True threshold 6.0
2024-03-28 16:15:00.879876 INFO pred_bat: Found 11520 load_today datapoints going back 7 days
2024-03-28 16:15:00.078917 INFO pred_bat: Predbat mode is set to Monitor
2024-03-28 16:15:00.076701 INFO pred_bat: Configuration: forecast_hours 24 max_windows 48 num_cars 0 debug enable is False calculate_plan_every 10 calculate_fast_plan False
2024-03-28 16:15:00.044350 INFO pred_bat: Autoupdate: Currently up to date
It seems it doesn't like reading the charging times from the array, and I thought it would pick it up from the octopus events ?
Please help !
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